EP2078891B1 - Electrically operated quick-closing valve device - Google Patents
Electrically operated quick-closing valve device Download PDFInfo
- Publication number
- EP2078891B1 EP2078891B1 EP09150161.9A EP09150161A EP2078891B1 EP 2078891 B1 EP2078891 B1 EP 2078891B1 EP 09150161 A EP09150161 A EP 09150161A EP 2078891 B1 EP2078891 B1 EP 2078891B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sliding member
- condition
- valve device
- opening
- supporting body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/025—Actuating devices; Operating means; Releasing devices electric; magnetic actuated by thermo-electric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/003—Actuating devices; Operating means; Releasing devices operated without a stable intermediate position, e.g. with snap action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/56—Mechanical actuating means without stable intermediate position, e.g. with snap action
Definitions
- the present invention relates to an electrically operated valve device.
- An electrically operated valve device comprising a supporting body, a shutter, a rotating member, a resilient return member, first opening actuator means, second closing actuator means and retaining means is disclosed in US-B-7 260 932 . Similar devices are disclosed in US-A-3798 894 and JP-A-60-188676 .
- One object of the present invention is to provide a reliably operating valve device which is simple and economical to produce, and in which the valve seat is quickly closed by electrical actuation. This and other objects are achieved according to the present invention by means of a valve device having the features defined in independent claim 1. Preferred embodiments of the valve device are defined in the dependent claims. Further characteristics and advantages of the invention will be made clear by the following detailed description, provided purely as a non-limiting example, with reference to the appended drawings, in which:
- valve device 10 is described as a shut-off valve. However, it will be evident to those skilled in the art that the configuration of the valve device 10 can also be adapted for operation as a selector valve, a diverter valve, or another type.
- the shutter 16 projects below the upper portion 12a of the supporting body 12 and faces into the lower portion 12b. In this drawing, the shutter 16 is in a closing position in which it blocks the valve seat.
- the valve device 10 comprises a sliding member 18 which is translatably mounted on the lower portion 12b of the supporting body 12, and which is fixed mechanically to the shutter 16 with respect to translation. In Figure 1 , the sliding member 18 is shown in a closing condition which corresponds to the closing position of the shutter 16.
- the shutter 16 has an intermediate narrower portion 16a and an enlarged terminal portion 16b, while the sliding member 18 comprises upper hooked portions 18a which surround the narrower portion 16a of the shutter 16.
- the sliding member 18 comprises upper hooked portions 18a which surround the narrower portion 16a of the shutter 16.
- the sliding member 18 has a general structure in the form of a hollow parallelepipedal frame which has a lateral aperture 20 for accommodating a lever 22 mounted rotatably in the lower portion 12b of the supporting body 12.
- the rotatable lever 22 has one end 22a housed in the lateral aperture 20 and is pushed by a resilient return member which pushes this rotatable lever 22 upwards, thus tending to retain the sliding member 18 in its closing condition shown in Figure 1 .
- the resilient return member is preferably a compressively pre-loaded helical spring 24 interposed between the inner walls of the portion 12b of the supporting body 12 and the lever 22 in a proximal position close to the rotation axis of the lever.
- the sliding member 18 has a lower aperture 26 of substantially rectangular shape which interacts with a retaining mechanism indicated as a whole by the number 28. On one side of the lower aperture 26, the sliding member 18 also has a first inclined profile 30a of a catch 30.
- the retaining mechanism 28 includes a locking element 32 which is rotatable with respect to the lower portion 12b of the supporting body 12 about an axis of rotation A-A.
- the locking element is a rocker lever 32 pivoted about a pin 34 which is mounted inside the lower portion 12b of the supporting body 12 and whose longitudinal axis coincides with the axis of rotation A-A.
- the locking element or rocker lever 32 has a first arm 36 which has a second inclined profile 36a, with a shape complementary to that of the first inclined profile 30a, at its upper end.
- the locking rocker 32 also has a second lower arm 38 which advantageously has a rounded tail 40 at its lower end, this tail bearing resiliently on the inner walls of the lower portion 12b of the supporting body 12.
- the locking rocker 32 is shown in an angular fastening position in which it is placed in order to couple itself releasably to the sliding member 18.
- the locking rocker 32 is constructed and mounted in the casing 12 in such a way as to oppose its rotation about the axis A-A which would move its first arm 36 away from the catch 30 of the sliding member 18.
- the rounded tail 40 has the function of resiliently retaining the locking rocker 32 (and particularly its first arm 36) in the aforesaid angular fastening position.
- the retaining means 28 also comprise a release element 42 which is rotatable with respect to the lower portion 12b of the supporting body 12.
- the release element 42 advantageously, but not necessarily, rotates about the same axis of rotation A-A as that of the locking rocker 32, since it is also pivoted for rotation about the pin 34.
- the release element 42 has a transversely elongated shape, from which a projection 44 extends axially at one end.
- a pin 46 projects axially at the opposite end of the release element 42.
- the axial projection 44 interacts with the first arm 36, while the axial pin 46 is pushed by an opposing resilient member 48 which tends to retain the release element in the angular position shown in Figure 1 and which bears on the inner walls of the lower part 12b of the supporting body 12.
- the actuator devices advantageously comprise a first conducting shape memory wire 50 and a second conducting shape memory wire 52.
- the first conducting shape memory wire 50 acts as the opening actuator for the valve device 10, while the second conducting shape memory wire 52 serves to close the device.
- the first actuating shape memory wire has a first end 50a connected mechanically to the rotatable lever 22, while its opposite lower end is fixed to the lower portion 12b of the supporting body 12.
- the second conducting shape memory wire 52 has both of its ends 52a and 52b fixed to the lower portion 12b of the supporting body 12, and is wound over the axial pin 46.
- the conducting shape memory wires 50 and 52 have the known property of reducing their length when an electric current is passed through them. They can therefore assume a first de-energized, or elongated, condition, in which no electric current flows through them, and a second energized, or contracted, condition, in which they are heated by an electric current flowing through them. After a predetermined period following their entry into the energized condition, these conducting wires 50 and 52 cool down and return progressively to their initial shape corresponding to their de-energized condition.
- two PTC resistors 51 and 53 are also housed in the lower portion 12b of the supporting body 12 and are connected upstream of the two conducting shape memory wires 50 and 52 respectively, to provide excess current protection.
- Figure 1 shows only the de-energized condition of both conducting shape memory wires 50 and 52, and their energized condition is not illustrated in the drawings.
- the valve device 10 also comprises a first, a second and a third external contact 54, 56 and 58, which are mounted so that they project outwards from the lower portion 12b of the supporting body 12.
- the first contact 54 is electrically connected to the first end 50a of the first conducting shape memory wire 50.
- the second contact 56 is electrically connected to the second end 50b of the first conducting shape memory wire 50 and to the second end 52b of the second conducting shape memory wire 52.
- the third contact 58 is electrically connected to the first end 52a of the second conducting shape memory wire 52.
- Figure 1 shows the valve device 10 with the shutter 16 in a closing position and the sliding member 18 in the corresponding closing condition.
- this valve device 10 for the purpose of its opening will now be described.
- a potential difference is initially applied by an external control device (not shown) between the first and the second external contacts 54 and 56.
- the first opening wire 50 therefore changes from the de-energized elongated condition ( Figure 1 ) to an energized, or contracted, condition (not shown).
- the lever 22 is thus rotated downwards (in the clockwise direction with respect to Figure 1 ) against the action of the resilient return member 24, and simultaneously moves the sliding member 18 downwards.
- the sliding member comes to bear with its hooked portions 18a against the enlarged portion 16b.
- the sliding member 18 then moves the shutter 16 from the closing position ( Figure 1 ) to the opening position (not shown) of the valve seat.
- the sliding member 18 is coupled to the locking rocker 32.
- this wire cools and returns to its elongated condition shown in Figure 1 .
- the resilient return member 24 pushes the lever 22, and therefore tends to return the group composed of the shutter 16 and the sliding member 18 to the closing position and the closing condition respectively.
- the coupling between the sliding member 18 and the locking rocker 32 prevents this movement.
- the external control device applies a potential difference between the second and third external contacts 56 and 58, causing the second conducting wire 52 to change from the elongated condition to the contracted condition.
- the release element 42 is rotated about its axis A-A (in the anticlockwise direction with respect to Figure 1 ), causing its axial projection 44 to move in such a way that it comes into contact with the first arm 36 and consequently moves the locking rocker 32.
- This movement coincides with the disengagement of the first arm 36 from the lower catch 30 of the sliding member 18.
- the resilient return member 24 is therefore free to push the lever 22, thus moving the sliding member 18 and the shutter 16 jointly into their closing position and condition respectively.
- the valve device 10 therefore returns to the configuration shown in Figure 1 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Magnetically Actuated Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Description
- The present invention relates to an electrically operated valve device. An electrically operated valve device comprising a supporting body, a shutter, a rotating member, a resilient return member, first opening actuator means, second closing actuator means and retaining means is disclosed in
US-B-7 260 932 . Similar devices are disclosed inUS-A-3798 894 andJP-A-60-188676
One object of the present invention is to provide a reliably operating valve device which is simple and economical to produce, and in which the valve seat is quickly closed by electrical actuation.
This and other objects are achieved according to the present invention by means of a valve device having the features defined in independent claim 1. Preferred embodiments of the valve device are defined in the dependent claims. Further characteristics and advantages of the invention will be made clear by the following detailed description, provided purely as a non-limiting example, with reference to the appended drawings, in which: -
Figure 1 is a view in elevation of an example of embodiment of a valve device according to the invention, shown without its front wall; -
Figure 2 is an enlarged perspective view of the retaining mechanism of the valve device; and -
Figures 3 to 5 are schematic illustrations of the sequence in which the retaining means are coupled to a sliding member of the valve device. - In the present description, the
valve device 10 is described as a shut-off valve. However, it will be evident to those skilled in the art that the configuration of thevalve device 10 can also be adapted for operation as a selector valve, a diverter valve, or another type.
As shown inFigure 1 , theshutter 16 projects below theupper portion 12a of the supportingbody 12 and faces into thelower portion 12b. In this drawing, theshutter 16 is in a closing position in which it blocks the valve seat.
Thevalve device 10 comprises a slidingmember 18 which is translatably mounted on thelower portion 12b of the supportingbody 12, and which is fixed mechanically to theshutter 16 with respect to translation. InFigure 1 , the slidingmember 18 is shown in a closing condition which corresponds to the closing position of theshutter 16.
In this condition, it should be noted that theshutter 16 has an intermediatenarrower portion 16a and an enlargedterminal portion 16b, while the slidingmember 18 comprises upper hookedportions 18a which surround thenarrower portion 16a of theshutter 16. In the opening position of theshutter 16 and in the corresponding opening condition of the sliding member 18 (Figure 1 ), it should be noted that there is a slight clearance in the axial direction between the hookedportions 18a and the enlargedend 16b, allowing the slidingmember 18 to travel idly through a short distance before it bears on the enlargedend 16b of theshutter 16 and pushes it downwards.
The slidingmember 18 has a general structure in the form of a hollow parallelepipedal frame which has alateral aperture 20 for accommodating alever 22 mounted rotatably in thelower portion 12b of the supportingbody 12.
Therotatable lever 22 has oneend 22a housed in thelateral aperture 20 and is pushed by a resilient return member which pushes thisrotatable lever 22 upwards, thus tending to retain the slidingmember 18 in its closing condition shown inFigure 1 .
The resilient return member is preferably a compressively pre-loadedhelical spring 24 interposed between the inner walls of theportion 12b of the supportingbody 12 and thelever 22 in a proximal position close to the rotation axis of the lever. - As shown also in
Figures 3 to 5 , the slidingmember 18 has alower aperture 26 of substantially rectangular shape which interacts with a retaining mechanism indicated as a whole by thenumber 28. On one side of thelower aperture 26, the slidingmember 18 also has a firstinclined profile 30a of acatch 30. - The
retaining mechanism 28 includes alocking element 32 which is rotatable with respect to thelower portion 12b of the supportingbody 12 about an axis of rotation A-A. Preferably, the locking element is arocker lever 32 pivoted about apin 34 which is mounted inside thelower portion 12b of the supportingbody 12 and whose longitudinal axis coincides with the axis of rotation A-A. - The locking element or
rocker lever 32 has afirst arm 36 which has a secondinclined profile 36a, with a shape complementary to that of the firstinclined profile 30a, at its upper end. Thelocking rocker 32 also has a secondlower arm 38 which advantageously has arounded tail 40 at its lower end, this tail bearing resiliently on the inner walls of thelower portion 12b of the supportingbody 12. InFigure 1 , thelocking rocker 32 is shown in an angular fastening position in which it is placed in order to couple itself releasably to the slidingmember 18. - In the angular fastening position, it can be seen that the
locking rocker 32 is constructed and mounted in thecasing 12 in such a way as to oppose its rotation about the axis A-A which would move itsfirst arm 36 away from thecatch 30 of thesliding member 18. Therounded tail 40 has the function of resiliently retaining the locking rocker 32 (and particularly its first arm 36) in the aforesaid angular fastening position. - The retaining means 28 also comprise a
release element 42 which is rotatable with respect to thelower portion 12b of the supportingbody 12. Therelease element 42 advantageously, but not necessarily, rotates about the same axis of rotation A-A as that of thelocking rocker 32, since it is also pivoted for rotation about thepin 34. In other variants (not shown), it is possible to use a first pin about which thelocking rocker 32 can rotate, and a second pin about which therelease element 42 can rotate. In such cases, the rotation of thelocking rocker 32 and therelease element 42 would take place about two different axes of rotation, which could advantageously be parallel to each other. - The
release element 42 has a transversely elongated shape, from which aprojection 44 extends axially at one end. Apin 46 projects axially at the opposite end of therelease element 42. - The
axial projection 44 interacts with thefirst arm 36, while theaxial pin 46 is pushed by an opposingresilient member 48 which tends to retain the release element in the angular position shown inFigure 1 and which bears on the inner walls of thelower part 12b of the supportingbody 12. - The actuator devices which concur in the closing and opening of the
valve device 10 will now be described. - The actuator devices advantageously comprise a first conducting
shape memory wire 50 and a second conductingshape memory wire 52. - In the procedure described below, the first conducting
shape memory wire 50 acts as the opening actuator for thevalve device 10, while the second conductingshape memory wire 52 serves to close the device. It should be noted that the first actuating shape memory wire has afirst end 50a connected mechanically to therotatable lever 22, while its opposite lower end is fixed to thelower portion 12b of the supportingbody 12. On the other end, the second conductingshape memory wire 52 has both of itsends lower portion 12b of the supportingbody 12, and is wound over theaxial pin 46. - The conducting
shape memory wires wires PTC resistors lower portion 12b of the supportingbody 12 and are connected upstream of the two conductingshape memory wires - In the present description,
Figure 1 shows only the de-energized condition of both conductingshape memory wires - The
valve device 10 also comprises a first, a second and a thirdexternal contact lower portion 12b of the supportingbody 12. - The
first contact 54 is electrically connected to thefirst end 50a of the first conductingshape memory wire 50. Thesecond contact 56 is electrically connected to thesecond end 50b of the first conductingshape memory wire 50 and to thesecond end 52b of the second conductingshape memory wire 52. Thethird contact 58 is electrically connected to thefirst end 52a of the second conductingshape memory wire 52. - As mentioned above,
Figure 1 shows thevalve device 10 with theshutter 16 in a closing position and the slidingmember 18 in the corresponding closing condition. - The actuation of this
valve device 10 for the purpose of its opening will now be described. A potential difference is initially applied by an external control device (not shown) between the first and the secondexternal contacts opening wire 50 therefore changes from the de-energized elongated condition (Figure 1 ) to an energized, or contracted, condition (not shown). Thelever 22 is thus rotated downwards (in the clockwise direction with respect toFigure 1 ) against the action of theresilient return member 24, and simultaneously moves the slidingmember 18 downwards. After an initial idle travel, the sliding member comes to bear with its hookedportions 18a against the enlargedportion 16b. The slidingmember 18 then moves theshutter 16 from the closing position (Figure 1 ) to the opening position (not shown) of the valve seat. - At the same time, as shown in
Figures 3 to 5 in particular, thelower catch 30 of the slidingmember 18, which descends together with the slidingmember 18, comes to bear on the upper end of thefirst arm 36. Consequently the interaction between the first and secondinclined profiles first arm 36 of thelocking element 32 away from its fastening position. However, owing to the resilient nature of the pressure exerted by therounded tail 40 of thesecond arm 38 of thelocking rocker 32, the passage of the firstinclined profile 30a below the secondinclined profile 36a causes thefirst arm 36 to be locked by engagement with thelower catch 30 of the slidingmember 18. - Thus the sliding
member 18 is coupled to thelocking rocker 32. After the activation of thefirst conducting wire 50, this wire cools and returns to its elongated condition shown inFigure 1 . In this condition, theresilient return member 24 pushes thelever 22, and therefore tends to return the group composed of theshutter 16 and the slidingmember 18 to the closing position and the closing condition respectively. However, the coupling between the slidingmember 18 and the lockingrocker 32 prevents this movement. - The actuation of the
valve device 10 for the purpose of its closing will now be described. Initially, the external control device applies a potential difference between the second and thirdexternal contacts second conducting wire 52 to change from the elongated condition to the contracted condition. Thus therelease element 42 is rotated about its axis A-A (in the anticlockwise direction with respect toFigure 1 ), causing itsaxial projection 44 to move in such a way that it comes into contact with thefirst arm 36 and consequently moves the lockingrocker 32. This movement coincides with the disengagement of thefirst arm 36 from thelower catch 30 of the slidingmember 18. Theresilient return member 24 is therefore free to push thelever 22, thus moving the slidingmember 18 and theshutter 16 jointly into their closing position and condition respectively. Thevalve device 10 therefore returns to the configuration shown inFigure 1 . - Naturally, the principle of the invention remaining the same, the forms of embodiment and the details of construction may be varied widely with respect to those described and illustrated, which have been given purely by way of non-limiting example, without thereby departing from the scope of the invention as defined in the attached claims.
The
The
Claims (10)
- Electrically operated valve device (10) comprising:- a supporting body (12) having a valve seat;- a shutter (16) which can be moved in a guided way between a first valve seat opening position and a second valve seat closing position;- a sliding member (18) which is mounted movably on the supporting body (12), is fixed mechanically to the shutter (16), and is movable between an opening condition and a closing condition, in which it moves the shutter (16) to the opening and closing position respectively;- a resilient return member (24) associated kinematically with the sliding member (18) and tending to retain said sliding member (18) in the closing condition;- first opening actuator means (50) which are associated with the sliding member (18) and which are designed to enter an activated condition, in which they bring the sliding member (18) into the opening condition against the action of the resilient return member (24);- retaining means (28) mounted on the supporting body (12) and capable of retaining the sliding member (18) when the latter is in the opening condition; and- second closing actuator means (52) which are associated with the retaining means (28), which can be electrically activated, and which can assume an activated condition in which they release the sliding member (18) from the retaining means (28), allowing said sliding member (18) to return from the opening position to the closing position;the retaining means (28) comprising:- a locking element (32) which engages releasably with the sliding member (18) when the latter is in the opening position, as a result of the activation of the opening actuator means (50), thus preventing the return of said sliding member (18) to the closing position; and- a release element (42) which disengages the locking element (32) from the sliding member (18) when the closing actuator means (52) are in the activated condition, thus allowing said sliding member (18) to return to the closing position; whereby the locking element (32) is rotatable with respect to the supporting body (12) about a first axis of rotation (A-A) and tends to maintain in a resilient way an angular fastening position in which it is capable of being coupled releasably to the sliding member (18).
- Valve device according to Claim 1, in which the release element (42) is rotatable with respect to the supporting body (12) about a second axis of rotation (A-A) against the action of opposing resilient means (48) and is designed to assume a release position in which it moves the locking element (32), thus disengaging it from the sliding member (18), as a result of the activation of the closing actuator means (52).
- Valve device according to Claim 2, in which said first and second axes of rotation (A-A) coincide.
- Valve device according to any one of Claims 1 to 3 , in which the sliding member (18) and the locking element (32) comprise, respectively, a first and a second inclined profile (30a, 36a) shaped in a complementary manner, said first inclined profile (30a) bearing on the second inclined profile (36a) when the sliding member (18) is moved from the closing condition towards the opening condition, and passing over said second inclined profile (36a) when said sliding member (18) is in the opening condition, so as to allow the locking element (32) to be coupled to said sliding member (18).
- Valve device according to Claims 1 and 4, in which the locking element is a rocker lever (32) comprising a first arm (36) carrying the second inclined profile (36a) and a second arm (38; 40) bearing on the supporting body (12) in such a way that it resiliently opposes the rotation of the first arm (36) of the locking element away from the sliding member (18) with respect to its fastening position.
- Valve device according to Claim 5 , in which the release element (42) comprises a projection (44) which interacts with the first arm (36), and which, when said release element (42) is in the angular release position, pushes the locking element (32) away from the fastening position, thus disengaging the sliding member (18).
- Valve device according to any one of the preceding claims, in which a rotatable lever (22) pivoted on the supporting body (12) is interposed between the movable sliding member (18) and the resilient return member (24), this lever being connected to said sliding member (18) and being acted on by said resilient return member (24).
- Valve device according to Claim 7, in which the first opening actuator means (50) can move the rotatable lever (22) against the action of the resilient return member (24).
- Valve device according to any one of the preceding claims, in which said first actuator means comprise a first conducting shape memory wire (50) which has one of its ends fixed to the supporting body (12) and its other end mechanically secured to the sliding member (18), and which can change from a de-energized elongated condition to an energized contracted condition when an electric current flows through it.
- Valve device according to any one of the preceding claims, in which the second actuator means comprise a second conducting shape memory wire (52) which has one of its ends fixed to the supporting body (12) and its other end mechanically secured to the retaining means (28), and which can change from a de-energized elongated condition to an energized contracted condition when an electric current flows through it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09150161T PL2078891T3 (en) | 2008-01-11 | 2009-01-07 | Electrically operated quick-closing valve device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000023A ITTO20080023A1 (en) | 2008-01-11 | 2008-01-11 | VALVE VALVE WITH ELECTRIC CONTROL WITH QUICK CLOSURE. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2078891A2 EP2078891A2 (en) | 2009-07-15 |
EP2078891A3 EP2078891A3 (en) | 2014-04-16 |
EP2078891B1 true EP2078891B1 (en) | 2018-06-13 |
Family
ID=40290379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09150161.9A Not-in-force EP2078891B1 (en) | 2008-01-11 | 2009-01-07 | Electrically operated quick-closing valve device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2078891B1 (en) |
ES (1) | ES2686885T3 (en) |
IT (1) | ITTO20080023A1 (en) |
PL (1) | PL2078891T3 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105121928B (en) * | 2013-03-06 | 2017-10-17 | 康斯博格汽车股份公司 | Fluid guiding device with shape memory alloy component |
US9945490B2 (en) | 2013-12-13 | 2018-04-17 | Kongsberg Automotive Ab | SMA valve for controlling pressurized air supply to an air cell in a vehicle seat |
US10207619B2 (en) | 2013-12-13 | 2019-02-19 | Kongsberg Automobile AB | SMA valve for controlling pressurized air supply to an air cell in a vehicle seat |
CN105813611B (en) | 2013-12-13 | 2018-05-22 | 康斯博格汽车股份公司 | For controlling the SMA valves to the air supply of air element in seat |
WO2015185132A1 (en) | 2014-06-04 | 2015-12-10 | Kongsberg Automotive Ab | Sma valve for controlling pressurized air supply to an air cell in a vehicle seat |
EP3343078A1 (en) * | 2016-12-29 | 2018-07-04 | L&P Property Management Company | Valve with shape memory alloy wire |
US11808374B2 (en) | 2020-12-30 | 2023-11-07 | Leggett & Platt Canada Co. | Fluid management system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3798894A (en) * | 1969-12-01 | 1974-03-26 | J Nikitin | Drive, preferably for the movable member of valves |
JPS60188676A (en) * | 1984-03-06 | 1985-09-26 | Sanyo Electric Co Ltd | Opening and closing device of valve |
DE102004062241A1 (en) * | 2004-12-23 | 2006-07-13 | BSH Bosch und Siemens Hausgeräte GmbH | Actuator for valves |
US7260932B1 (en) * | 2006-03-06 | 2007-08-28 | Therafuse, Inc. | Shape memory alloy latching valve |
-
2008
- 2008-01-11 IT IT000023A patent/ITTO20080023A1/en unknown
-
2009
- 2009-01-07 PL PL09150161T patent/PL2078891T3/en unknown
- 2009-01-07 ES ES09150161.9T patent/ES2686885T3/en active Active
- 2009-01-07 EP EP09150161.9A patent/EP2078891B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
ITTO20080023A1 (en) | 2009-07-12 |
EP2078891A3 (en) | 2014-04-16 |
ES2686885T3 (en) | 2018-10-22 |
EP2078891A2 (en) | 2009-07-15 |
PL2078891T3 (en) | 2019-01-31 |
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